openaccountants

Overview

OpenAccountants provides 371 tax computation skills for various countries, enabling AI assistants to help with tax preparation and transaction classification. The project offers both manual upload of tax skill files and an MCP server implementation for automatic skill discovery. The skills cover VAT, income tax, and social security contributions across different jurisdictions, with quality tiers indicating verification levels. The system aims to reduce accounting time by 80% through automated transaction classification and form filling.

Try asking AI

After installing, here are 7 things you can ask your AI assistant:

• list_jurisdictions

  List available tax jurisdictions/countries

  Try:Which countries are available for tax assistance?Try:List all available tax jurisdictions
• list_files

  List available tax skill files for a specific country

  Try:What tax files are available for Malta?Try:Show me all the files for UK tax skills
• get_file

  Retrieve the content of a specific tax skill file

  Try:Get the foundation file for Malta tax calculationsTry:Show me the VAT rules for Spain

Comparable tools

Installation

git clone https://github.com/openaccountants/openaccountants.git
cd openaccountants
pip install ./mcp

{
  "mcpServers": {
    "openaccountants": {
      "command": "openaccountants-mcp"
    }
  }
}

{
  "mcpServers": {
    "openaccountants": {
      "command": "openaccountants-mcp"
    }
  }
}

FAQ

How many countries are supported?

The project covers 134 countries with varying levels of tax skill support, with 8 countries offering the full guided experience including VAT, income tax, and social security contributions.

What quality assurance is provided?

Skills are tiered Q1-Q5 based on verification levels. Q1 means battle-tested on real bank statements with practitioner sign-off, while Q3 is AI-drafted with citations but not independently verified.

How does the MCP server work?

The MCP server automatically provides tax skills to AI clients when needed. When you request help with a specific country's taxes, the AI calls list_jurisdictions, lists available files for that country, and fetches the relevant skill files.

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